Improvement in erasers



E. WEISSENBORN.

Erasers.

510,153,408, Patented1uly21,1874.

UNITED STATES PATEN'I' OFFICE EDVARD VVEISSENBORN, OF HOBOKEN, NEWJERSEY.

IMPROVEMENT IN ERASERS.

Specification forming part of Letters Patent No. 153,408, dated July 21,1874; application filed January 10, 1874.

To all 'whom it may concern:

Be it known that I, EDWARD WEIssENBoRN, of Hoboken, in the county ofHudson and 4State of NewJersey, have invented an Ink and Pencil Eraser,of which the following' is a specification This newly-invented ink andpencil eraser of mine is composed of a pair of clamps or holders,operated by a screw and nut, or other suitable devices, to hold a blockof india-rubber at one end, and an ink-eraser at the other, in suchina-nner that each forms a brace to retain the other in place, andeither may be renewed at plea-sure.

The ink-eraser which I intend to use consists of a core of cork or othersuitable material, and an external covering-of iine sandpaper or otherabrasive material, which is confined between said clamps, and isremovable and reversible to present a fresh rubbingsurface.

In the accompanying drawing, Figure l is a side View of my pencil andink eraser. Fig. 2 is an edge view ofthe same. Fig. 3 is a longitudinalsection thereof', and Fig'. 4 is a perspective view ot' the ink-eraserdetached.

Similar letters of reference indicate correspondin g parts throughoutthe several figures.

A and B are the clamps before alluded to as constituting holders for thepencil and ink erasers. They may be made of wood, metal, or any othersuitable material, and are operated to clamp and hold the erasers by ascrew, C, fastened to the middle portion of the clamp A, and passingthence through the middle of the other clamp, B, outside which itreceives a nut, D, whereby provision is afforded for tightening orloosening the clamps at pleasure. The pencil-eraser E may be a block ofindia-rubber; but the ink-eraser G I prefer should be one composed of acore of cork, or other suitable material, and a covering of sandpaper,glass-paper, or other abrasive material, which can be easily wrappedround the core.

Such an ink-eraser will be found as serviceable as the knives commonlyused for erasing, and much more convenient. The clamps, being heldtogether at the middle, have a tendency to verge together at either end;but this is prevented by the eraser held between the other ends, andthus each eraser forms a brace to hold the other in place. The sideedges of these two clamps are turned over to confine the erasers andprevent their lateral displacement.

This article possesses great merit, owing to the opportunity it affordsfor renewing the erasers when worn out. A All that has t0 be done is tounscrew the nut to loosen the plates, after which either or both theerasers may be removed and replaced at pleasure. On the renewal of theerasive materials the nut is screwed up again to cause the clamps totighten and hold them.

The ink-eraser can be renewed by simply applying a new covering to itscore, or oftentimes it wil'l be sufiieient to shift the covering, sothat an un worn portion will cover the protruding part of the core.

In some cases, instead of the ink-eraser E, there may be substituted aneraser composed of india-rubber or india-rubber composition.

What I claim as my invention is l. The combination of the two clamps orholders A and B, means for drawing them toward each other, and theerasers E and G, substantially as described, whereby each eraser servesas a brace to retain the other in place, and either or both arerenewable at pleasure.

2. The removable and reversible ink-eraser G, having a removableabrasive eoverin g, and confined in positionjsy the clamp A B, allconstructed and combined substantially as and for the purpose described.

Witnesses: EDV. WEISSENBORN.

HENRY T. BROWN, MICHAEL RYAN.

